diff --git a/substrate/.maintain/monitoring/alerting-rules/alerting-rules.yaml b/substrate/.maintain/monitoring/alerting-rules/alerting-rules.yaml
index 16a27c06d3..6bca918735 100644
--- a/substrate/.maintain/monitoring/alerting-rules/alerting-rules.yaml
+++ b/substrate/.maintain/monitoring/alerting-rules/alerting-rules.yaml
@@ -127,8 +127,8 @@ groups:
   ##############################################################################
 
   - alert: ContinuousTaskEnded
-    expr: '(polkadot_tasks_spawned_total == 1) - on(instance, task_name)
-    (polkadot_tasks_ended_total == 1)'
+    expr: '(polkadot_tasks_spawned_total{task_name != "basic-authorship-proposer"} == 1)
+        - on(instance, task_name) (polkadot_tasks_ended_total == 1)'
     for: 5m
     labels:
       severity: warning